Interesting talk about gender 1

? All human activities are sexual extensions-Freud

Sex, sexual behavior and marriage are accompanied by a person's life, which is full of people's whole world, including material and spiritual. The sexual culture of human society reflects the whole history of human development.

general rule

This topic * * * consists of 120, introducing the topic of "Scientists predict that men will disappear" and the relationship between men and women. With Huawei as the center, through legends, historical materials, folk anecdotes, poems and miscellaneous notes, etc. , in the form of interesting talk, integrates politics, economy, law, thought, culture, social thoughts and other fields, showing a unique history of human culture development.

Special note: all the contents of this topic are only the author's anecdotes after dinner, and can't be used as research objects such as historical materials, scientific research and writing. At the same time, readers are also welcome to exchange and correct their mistakes.

The first part is the chaotic ancient society.

There is no written record in ancient society, so we can only rely on speculation, reasoning and imagination, from scratch, from scratch, from monotonous to colorful. This process actually accounts for more than 99% of human history.

Section 1 Men will disappear

? "Men will disappear!" This is an interesting topic from the scientific community to the folk streets and lanes in recent years. At the same time, it is also a very shocking topic for male chauvinists. What a pity! Look at today's world, from leaders of various countries and regions to civil construction workers and farmers, men still occupy more than half of the sky! How does God think this style will disappear? It's really confusing. Let's start from the beginning.

20 13 On a cloudy morning, Jenny Graves, an Australian geneticist who is one of the top scientists in the field of chromosome research in the world, made it clear in a public lecture at the Australian Academy of Sciences that the male-specific Y chromosome is very fragile and cannot repair the damage caused by genetic variation on its own. This means that men will be extinct, women will win the battle of gender, and the process of extinction has begun!

What's wrong with this Y chromosome, which will make men disappear?

This question is a bit abstruse, involving human genetics.

? Let's say it in simple English. As we all know, human reproduction, reproduction and inheritance are determined by genes. Genes are not rootless duckweeds in cells. They wander around aimlessly and must have a home, that is, a carrier. The carrier of this gene is called chromosome by scientists. Chromosomes are spiral bands. Scientists divide chromosomes into two types: X type and Y type. Normal people, a * * * has 23 pairs of 46 chromosomes. Of the 23 pairs of chromosomes, 22 pairs are called autosomes. Everyone is the same, men and women are the same, and they are all X-shaped. The other pair is different. It is a sex chromosome, XX for females and XY for males. In other words, the fundamental reason for the difference between men and women lies in this Y chromosome.

This Y chromosome is so unique that it is a treasure for men. Men want the Y chromosome to be strong and invincible!

However, after the research of scientists, the result really disappointed men. Compared with S staining, male Y chromosome is like Wu Dalang and Pan Jinlian walking together: one is short, the other is tall, the other is clumsy and the other is clever. "Smart" here means that there are many useful genes on chromosomes, which play an important role in physiology. "Clumsy" means that there are few useful genes on the chromosome, which have no vitality and no effect.

So why is the Y chromosome so short and inflexible? Scientists believe that, first of all, the Y chromosome should be as long as the S chromosome and have as many genes. But later, due to degradation, the above genes were constantly abandoned, so it was gradually shortened to what it is today. If we continue to discard the genes on the Y chromosome at the same speed as in the past, the length of the Y chromosome in men will approach zero in millions of years. In this way, human males as a gender will disappear from the earth.

Of course, the scientific community also has the objection that "men will disappear". Professor Deng Chunhua and Dr. Gao Yong from the Department of Urology, the First Affiliated Hospital of Sun Yat-sen University in China believe that the Y chromosome, as the sex-determining chromosome of men, is actually shrinking, but it is actually a manifestation of evolution. In the long-term evolution process, the Y chromosome has been discarded all the way, not declining, but its function has become more and more specialized. The Y chromosome may disappear, but the SDY gene on the Y chromosome that determines male sex will be reflected and play a role in other chromosomes. However, the man at that time did not belong to the man now, but was a "new man".

? In any case, even if men will disappear, it will be at least 5 million years later. However, this topic has spread to the lives of ordinary people. People seldom study what the "Y chromosome" is, but they talk more about sex and gender relations.

(Please see the second section? What is the ancestor of sex? )